<%@ page import="java.io.*,java.util.*" language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Showing HTTP Request</title>
</head>
<body>
<%
   Enumeration headerNames = request.getHeaderNames();
   while(headerNames.hasMoreElements()) {
      String paramName = (String)headerNames.nextElement();
      out.print(paramName);
      String paramValue = request.getHeader(paramName);
      out.println("=" + paramValue + "<br/>\n");
   }
%>
</body>
</html>